import { Injectable } from '@angular/core';
import { AppConfig } from "../config";
import { Http, Headers } from "@angular/http";
import { Observable } from "rxjs/Observable";
import { FaultLevel } from "../entity/fault-level.model";
import { InterceptorService } from '../service/interceptor/interceptor-service';

@Injectable()
export class FaultLevelService {
    private readonly param = "faultLevels";
    private get url(): string {
        return `${AppConfig.APP_RESTFUL}/${this.param}`;
    }

    constructor(private http: InterceptorService) { }

    /**
     * 获取报警等级
     * 
     * @returns {Promise<FaultLevel[]>} 
     * @memberof FaultLevelService
     */
    getFaultLevels(): Promise<FaultLevel[]> {
        return this.http.get(this.url)
            .toPromise()
            .then(response => response.json().data as FaultLevel[])
            .catch(this.handleError);
    }

    /**
     * 获取报警等级和声音
     * 
     * @returns 
     * @memberof FaultLevelService
     */
    getFaultLevelsWithSound(): Promise<FaultLevel[]> {
        return this.http.get(`${this.url}/sound`)
            .toPromise()
            .then(response => response.json().data as FaultLevel[])
            .catch(this.handleError);
        /* let levels: FaultLevel[] = [
            new FaultLevel(1, "高", 1, true, "#FC1829", "", 99, "../../../../assets/media/alarmlevel3.wav",0),
            new FaultLevel(2, "中", 1, true, "#B78E00", "", 2, "../../../../assets/media/alarmlevel2.wav",0),
            new FaultLevel(3, "低", 1, true, "#006400", "", 1, "../../../../assets/media/alarmlevel1.wav",0),
        ];
        return Promise.resolve(levels); */
    }
    /**
     * 根据分类code获取报警等级和声音列表
     * 
     * @returns 
     * @memberof FaultLevelService
     */
    getBasicFaultLevelListByDeviceCategoryCodes(codes:string[]): Promise<FaultLevel[]> {
        return this.http.get(`${this.url}/deviceCategoryCodes/${codes}`)
            .toPromise()
            .then(response => response.json().data as FaultLevel[])
            .catch(this.handleError);       
    }

    create(faultLevel: FaultLevel): Promise<FaultLevel> {
        return this.http.post(this.url, JSON.stringify(faultLevel))
            .toPromise()
            .then(res => {
                try {
                    let result = res.json();
                    switch (result.code) {
                        case "200":
                            return result.data as FaultLevel;
                        case "-1":
                            throw new Error(result.message);
                    }
                }
                catch (error) {
                    this.handleError(error);
                }
            })
            .catch(this.handleError);
    }
    update(faultLevel: FaultLevel): Promise<FaultLevel> {
        const url = `${this.url}`;
        return this.http.put(url, JSON.stringify(faultLevel))
            .toPromise()
            .then(() => faultLevel)
            .catch(this.handleError);
    }

    //根据Name判断是否已经存在
    hasStateName(faultLevelName: string, faultLevelId: number): Observable<boolean> {
        const url = `${this.url}/faultLevelName/${faultLevelName}/faultLevelId/${faultLevelId}`;
        return this.http.get(url).map(response => {
            let code = response.json().code;
            switch (code) {
                case "3001":
                    return true;
                case "3002":
                    return false;
            }
        }).catch(this.handleError);
    }

    hasStateColor(faultLevelColor: string, faultLevelId: number): Observable<boolean> {
        faultLevelColor = faultLevelColor.replace(/\#/, "%23");
        const url = `${this.url}/faultLevelColor/${faultLevelColor}/faultLevelId/${faultLevelId}`;
        return this.http.get(url).map(response => {
            let code = response.json().code;
            switch (code) {
                case "3001":
                    return true;
                case "3002":
                    return false;
            }

        }).catch(this.handleError);
    }

    delete(id: number): Promise<void> {
        const url = `${this.url}/${id}`;
        return this.http.delete(url)
            .toPromise()
            .then(() => null)
            .catch(this.handleError);
    }
    batchDelete(valueIds: number[]): Promise<boolean> {
        const apiUrl = `${this.url}?items=${valueIds}`;
        return this.http.delete(apiUrl)
            .toPromise()
            .then(response => {
                try {
                    let result = response.json();
                    switch (result.code) {
                        case "200":
                            return true;
                        case "-1":
                            throw new Error(result.message);
                    }
                }
                catch (error) {
                    throw error;
                }

            })
            .catch(this.handleError);
    }

    private handleError(error: any): Promise<any> {
        return Promise.reject(error.message || error);
    }


}


// WEBPACK FOOTER //
// ./src/app/service/fault_level.service.ts